305241505213 has 16 divisors (see below), whose sum is σ = 309835724800. Its totient is φ = 300684436416.

The previous prime is 305241505171. The next prime is 305241505229. The reversal of 305241505213 is 312505142503.

It is a cyclic number.

It is not a de Polignac number, because 305241505213 - 2²⁵ = 305207950781 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (305241505013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30880570 + ... + 30890452.

It is an arithmetic number, because the mean of its divisors is an integer number (19364732800).

Almost surely, 2^305241505213 is an apocalyptic number.

It is an amenable number.

305241505213 is a deficient number, since it is larger than the sum of its proper divisors (4594219587).

305241505213 is a wasteful number, since it uses less digits than its factorization.

305241505213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11716.

The product of its (nonzero) digits is 18000, while the sum is 31.

Adding to 305241505213 its reverse (312505142503), we get a palindrome (617746647716).

The spelling of 305241505213 in words is "three hundred five billion, two hundred forty-one million, five hundred five thousand, two hundred thirteen".